How big are they? I am using the camera function. Making a new note, adding a photo (it asks, from file or take a photo), and I take a photo of one or more forms that I need to keep track of.
It worked for ... at least a year I think, and suddenly I realise only the thumbnail is working. When I open the note - there is nothing. Even after weeks later, should be plenty of time for syncing.
I used my iPad - doing exactly the same - and all works fine.
Hence, I think there must be a bug in the current version of Evernote (maybe only some installs, or some iPhones?)
Using iPhone 8 and iPadPro2 (l12.9" or whatever, the larger one)